Automobile jack



Nov. 28, 1933- M. F. WUEBBEN Er Al.

AUTOMOBILE JACK 2 sheets-sheet. 1

Filed Maren 9, 1931 @um nu' Nov- 28, 1933- M. F. wuEvBBEN' Er An.

AUTOMOBILE JACK Filed March 9, 1931 2 Sheets-Sheet. 2

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Patented Nov. 28, 1933 AUTOMOBILE JACK Matthew F. Wuebben and Rudolph Schroeder,

Wynot, Nebr.

Application March 9. 1931.V Serial No. 521,296

` (Cl. 18u-82) This invention relates to automobiles and has to a standard 21 extending up from the base 13 special reference to a hydraulic jack system for while the other end is slotted to receive the automotive vehicles. crank pin 22 of a toothed crank wheel 23, mesh- One important object of the invention is to ing with the pinion 24 on the armature shaft 25 provide a novel and improved arrangement of of the electric motor 25' having circuit Wires 24'. 60 jacks permanently and nxedly attached to an The valves l5 and 16 both open away from the automobile whereby either or both ends of the tank 12 so that operation .of the pump plunger vehicle may be lifted so as to raise the wheels 18 draws the liquid out of the tank upon upward at the lifted end or ends off the ground. movement of said plunger and forces it along A second important object of the invention is the pipe 14 past the valve 16 upon downward 05 to provide an improved arrangement of this movement of said plunger. A branch or by pass class wherein the pumping up of the jacks may pipe 26 has its ends connected to the pipe 14 be accomplished either manually or by motor between the valves and 16 and preferably on means. opposite sides of the cylinder 17. A pump cylinder 15 A third important object of the invention is 27 is connected to this branch pipe intermediate 70 to provide, in connection with such a system, its ends and is provided with a plunger 28 pivoted novel means whereby the motor clutch will be to a lever 29 intermediate the ends of the latter. automatically released upon initiation of the One end of the lever 29 is pivoted .to a standard pumping operation. 30 extending upwardly from the base 13 while the Y With the above and other objects inview, the other end of said lever has an operating rod 31 75 invention consists in general of certain novel pivoted thereto and extending up through the details of construction and combinations of parts floor of the automobile. A handle 32 is provided hereinafter more fully described, illustrated in on the upper end of this rod so that the handle the accompanying drawings and specically may be manipulated to operate the pump just claimed. `Y described. It is not intended that the pumps 17 30 In the accompanying drawings, like characters and 27 be used simultaneously, the pump 27 beof reference indicate like parts in the several ing constantly out of use and only employed Views, and- L when the pump 17 fails to operate which might Figure 1 is a plan view of an automobile chassis be occasioned by motor trouble or the like. Thus` showing the improved apparatus applied thereto; either of the pumps may be operated at will. 85

Figure 2 is an enlarged section on the line The pipe 14 extends from the valve 16 and ter- 2-2 of Figure 1; minat'es in branches 33 and 34 each having a. Figure 3 is an enlarged section on the line 3-3 shut off valve 35 therein. Also, between the valves 0f Figure 1; 35 there is a branch pipe 36 leading from the Figure 4 is an enlarged section on the line 4 4 branch 33 to the top of thetank 12 and having 90 oi Figure 1; f a valve 37 therein. yOne branch 33 is connected Figure 5 is an enlarged section on the line 5-5 by a ilexible tube 38 to a header 39 leading to of Figure 1; and the upper ends of jack cylinders 40. These cyl- Figure 6 is an enlarged detail showing the inders are secured to the front axle 441 by plates 4.o clutch lever and clutch releasing cylinder. 42 and bolts 43. 'Simililarly, the branch 34 is 95 In the embodiment of the invention here disconnected through a flexible tube 43 and a headclosed, there is shown achassis frame 10 supporter 44 to jack cylinders 45 secured to the rear ed on wheels 11. Suitably supported by any oraxle by plates 46, and bolts 47. Each of the jack dinary means is a tank or reservoir 12 which cylinders has a piston 48 working therein and 45 preferably contains a non-freezing liquid such provided with a hydraulic cup packing 49. A 100 as a mixture of denatured alcohol, glyceiine and Piston IOd 01' plunger 50 extends dOWnWuldlY castor oil. Adjacent the tank is a base or.p19,t from the cylinder and'is provided on its lower form 13 and from the bottom of the tankl a end with a foot 51. Each foot 51 is connected pipe 14 extends across this platform. This pipe by a tension spring 52' with the jack cylinder has check valves 15 land 16 interposed in its length header t0 hold the foot normally raised. A tube 105 and connected to the pipe intermediate the valves 53 Surrounds this Spring and 1S Xed it its 10We1 15 and 16 is a pump cylinder 17 provided with a end to the foot 51 to rise and fall therewith. By plunger 18 forked at its upper end for reception this means, injury to the spring is prevented. of a lever 19 which is secured in the fork by a A branch pipe 54 leads from the pipe 14 to a 55 pivot pin 20.' One end of this lever is pivoted cylinder 55 having a plunger 56 which bears 110 V normal raised position. Y

against the usual clutch lever 57.. Should the -pump be inadvertently placed in operation while the vehicle is moving, the clutch would be automatically disengaged as a warning to the driver and this action would occur before other parts. of the jack would begin to operate.

In operation, the valve 3'7 is closed. .When it is desired to lift both ends of the car both valves 35 are open but if one end only of the car is to be lifted, then only the valve 35 controlling the ow of liquid to that end is open, the other valve being closed. Eitherthe hand or electric operated pump is now operated with the result that uid under pressure is forced into the jack cylinder at one end or both ends of the automobile as the case maybe. This forces the jack feet down to the ground and then lifts the car. At the instant pressure is produced in the pipe 14, the plunger 56 is forced out and the clutch lever moved to release the clutch by the rod 457'. When it is desired to release the jacks, the valve 37 is opened so that the springs 52, assisted at rst by the weight of the car, return the jack pistons to There has thus been provided a simple and eilicient device of the kind described and for the purpose specied.

While there is herein shown and described the preferred embodiment of the present invention, it is nevertheless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed.

Having thus described the invention, what is claimed isz- 1.v In a jacking device for automobiles, a pump, a reservoir connected to said pump for supplying liquid thereto, a pipe leading from said pump,

hydraulic jacks xed to the front and rear parts of the automobile, branch pipes leading from the first pipe to the front and rear jacks respectively,

control valves in said branch pipes, a clutch lever for controlling movement of the automobile, a cylinder receiving pressure from said pump, and a plunger movable in said cylinder to engage said lever and move the same to clutch releasing position.

2. In an automobile having an engine operatively connected to its Wheels through a clutch and having clutch releasing means, a hydraulic jack positioned adjacent each wheel, a pump, a hydraulic cylinder operatively connected to the clutch Areleasing means and having direct pipe connection with the pump, and pipe connections between said jacks and pump.

3. A safety device for an automobile equipped with a driving engine and driving wheels clutch connected to the engine, the automobile being further equipped with hydraulic jacks and a pump for operating the jacks, said safety device consisting in a clutch releasing device operablen to release the clutch upon actuation of the pump.

4. A safety device for an automobile equipped with a driving engine and driving wheels clutch connected to the engine, the automobiles being further equipped with hydraulic jacks and a pump for operating the jacks, said safety device consisting in a clutch releasing device operable to release the clutch upon actuation of the pump and comprising a hydraulic cylinder receiving fluid under pressure is operated, a plunger in the cylinder, and an operative connection between the plunger and clutch.

MATTHEW F. WUEBBEN. RUDOLPH SCHROEDER. 

